Bed



L. D. DOBBS Oct. 4, 1932.

BED

Filed Dec. 11, 1929 3 Sheets-Sheet 2 INVENTOR LOYLE D. 00855 B M m M ATTQRNE Ys Oct. 4, 1932. D, D 5 1,880,890

BED

Filed Dec. 11, 1929 5 Sheets-Sheet 3 INvENToR LOYLE D. D0555 AT TORNEYS Patented Oct. 4, 1932 UNITED STATES, ATEN- rasaset FHCE LOYLE D. DOBIBS, OF MINNEAPOLIS,' MINNESOTA, ASSIGNOR TO MINNEAPOLIS BEDDING COMPANY, OF MINNEAPOLIS, MINNESOTA, A CORPORATION OF MINNESO'JJA BED Application filed December 11, 1929. 'Seria1:No. 413 ,272.

This invention relates to new a-nd useful improvements in folding beds of the type wherein that portion of the device whlchsupports the usual spring and mattress is plvotally connected at one end to a foot frame, which forms a partof a head frame, in turn swingingly attached-in a dooropening. In devices of this kind, the mattress and foot frames are swung to a vertical position, and then the whole structure is swung to storage position. I

Among the objects of the present invent on is to provide means, operable in conjunct1on with the hinged connection of the mattress frame and the head frame, for counterbalancing the weight of the mattress and foot frames, bed spring, mattress, etc., and to provide means which is adjustable to vary the counterbalancing force. Another object is to provide improved means whereby the head frame may be adjusted transversely with respect to the means by which it is hinged in the door opening. A further object is to provide a foot frame pivoted to the mattress frame and to provide means to cause this foot frame to assume a fixed substantially perpendicular relation to the mattress frame before its foot portions engage the floor, and thus prevent injury to floor or floor covering, as the result of movement after such engagement.

Features of the invention include, along with the broader aspects, all details of construction shown in the drawings.

Objects, advantages and features ofthe invention willoappear inthe description of the drawings forming a part of this application and in said drawings:

Figure 1 is a vertical section showing th improved bed structure in folded position;

Figure 2 is a vertical section illustrating the hinging and adjustable counter-balancing mechanism; V

Figure 3 is a plan section on line 3-3 of Figure 1 illustrating the means for transversely adjusting the head frame with refer- 7 ence to its pivotal support;

Figure 4 is a plan section on line 4l of Figure 1 further illustrating the means for adjustably securing the head frame to its pivotal support, this portion of'the apparatus also acting to support a horizontal extension or foot of said head frame;

Figure '5 is a detail vertical section of the top portion of the head frame attaching and adjusting means;

Figure 6 is a fragmentary side elevation illustrating the means for causing the foot frame to assume a fixed, substantially per- 7 pendicular, relation to the bed frame;

Figure 7 is a vertical section on line/7+7 I of Figure 6; j

Figure 8 is a vertical section on line 8 8 of Figure 6 illustrating the stop; and

Figure 9 is a section on line 9--9 of Figure 1 illustrating the extensible linkage between the head frame, and link connections between the mattress and foot frames. p

Numeral 1 indicates a door opening, 2 and 3 respectively indicate upper and lower brackets secured to or adjacent one vertical surface of the door opening. Pivotally attached to the brackets 2 and 3 is a head frame including a swing post 4, a head frame 5 having upper and lower cross bars 67, and having frame extensions indicated at 8. These frame extensions are connected transversely at their forward ends by means of a tubular element 9, see Figures 1 and 3.

The head frame 5 is connected to the swing post 4 by means which permits transverse adjustment of the head frame relative to said swing post, and this is a feature of the invention." The swing post is provided'at its the other member of which clamp is shown at 13. i The elements 12 and 13 are held'in clamping engagement with the top rail 6 of the head frame by means of a set screw 14. The element 10 is pivoted to the element 2 by means of a pin 15. By inspection of Figure 3, it will be seen that the pivot 11 provides end to a bracket which bracket includes an extension having a split collar 21 (see Figures 1 and 4) clampingly attached to the swingpost 4 by means of thescrew 22. The lower endof the bracket has an extension 23 in-which the lower end of the swing post is socketed. Apin 24pivotai-ly connects this is, in this instance, attached to the floor. The outer end of the arm or'bracket 20 is provided with a depression 25 which receives the transverse tubular-member9 which crossconnects and is socketed in the frames 8. These frames 8 are secured by suitable: means to the side postsfof'the head frame which means includes .(see Figure 2) a lower socket member 26 .ai'id a screw28. The 'jfr ame is provided with a socket 30 which receives the lower transverse tubular element 7 of the head frame. A clamping element 31, having a; corresponding socket, is arranged as shown in-Figures'l and 4,"an'd a clamping screw 32 secures the parts. In assembling, the tubular elements 6 and 7 are placed against eiemeatsia-ao, andeleinnts 13 and 31 are th l d and the sembly.

parts clamped by means of the screws 14 and 32. If nan-m1, the frame 5 doesnot have other important feature of the invention' pe'rta-insto the means now to be described for',' pivotally connecting the mattress frame section of the bed to the head frame and a for counter bala-ncing. the weight of the bed name spring and mattress, and for adjust ing the counter-balancing force required to offset the weight of the frame, spring and mattress. Referring to Figures 1 and 2.

' Each'frame 8 has the form of a casting, and

the'tw'o frames togetherform a kind of-socket, downwardly into .which'the head end of the mattress frame swings, in the, manner shown in Figurev 1. 'Each frame 8 avertical tubular-housing 40, within which isplaced a compression spring 41." Each frame 8 is provided with ears 42. Each of the side rails T 43 of; the mattress. frame has detachably sec ured thereto aplate. or'bracket 4 5, the detachable connection being made by means of screws 46, see Figure 2. This is a feature. This bracket 45 has a projection 47 through which projection and the ears 42 passes a pivot 48, thus swingingly connecting the mattress frame to the foot frame 8 of the head frame,

at a point outwardly from the head frame in a direction toward the foot of the bed. The

plate 45 has formed therein at one end a slot 50, and also has ears or projections 51 be tweenwhich is detachably pivoted a lever 52, by means of a pivot 53. One end of the lever 52 has -pivotedth ereto a plunger 54, the'pivot being indicated at 55. The lower 156 Qf'this plunger is substantially spherextension to the lower hinge bracket; 3 which,

ical and. fits into corresponding opening 57 of a plate 58, forming a swiveled joint. :The plate rests upon the top of the compression spring. M eans for adjusting this lever withrespect to theplate 45, consists of a screw having a shank 6O in threaded engagement withone end ofthe' lever 52 as shown, said shanklpassinglthrough the slot 50 and twinge head 61 which is disposed as shown between plate 45 and rail 43, the shank being thus lockedagainst translation. The end of the lever 52 is notched to form spring fingers 62 through which the shank 60 passes, and which it has threaded engagement. set screw .63 functions to fleic the fingers to ward one another and lock the screw shank 60 against turning. 1The shank 60 has a screw driver slot 65 for rotating the shank to adjustably rock the lever 52 and vary the tension of spring 41. All constructional details of the foregoing device are claimed, along with the broader ideas of means which provide'an adjustment of the tension of the spring 41. "What might be termed a micrometric adjustment is thus provided for the pr g g j I 7 Another. valuable feature of the invention relates tn the means for causing apivotedfoot frame to assume a substantially perpendicular and fixed relation to the mattressv frame,

before its foot portions engage the floor, to prevent adjusting motions thereof after engagement, and therefore to prevent marring of the floor or floor covering.

Referring to Figures 1 and 6 to 8. The foot franie'is indicated at 67, and is pivoted by means of links to the side bars 43 of ithe mattress frani efsee Figures 1 and 6. Sets of linkages are arranged, one setat each side of the; bed. 'fEach set includes brackets 68,

one attached to each side bar'43 or the mattress frame, along with a pair of brackets 69 '70 attached in spaced relation as shown, one pair to each vertical side bar of the foot frame 67. The bracket 68 provides spaced lugs respectively numbered 71 and 7 2. As shown in Figure 7', tl'ie'lugs 72 and '71 of plate 68 are arranged at oppositesides, the lug-71 at the outer side andthe lug 72'at the inner side of the plate. A straight link73 through this slot.

is pivoted as at 7 7 5 respectivelyto the upper plate of the foot frame and the lug 71 of plate 68 or that lug which is nearest the foot frame. A second link 76 is connected as at 77-7 8 respectively to the lug 72 which is farthest from the foot frame and to the lowermost bracket of the foot frame. The links 7 3 and 7 6 are therefore so connected and arranged that they lie in substantially parallcl relation, when the mattress frame is raised (see Figure 1) and act to cause the foot frame to also assume a position substantially parallel with the mattress frame. The linkage is, moreover, arranged so as to bring the foot frame to a substantially perpendicular position with respect to the mattress frame, before said mattress frame reaches its lowermost position, that is before the foot frame touches the floor.

The means new to be described has the form of an extensible linkage for securing the links 7376 to prevent motion of the foot portions of the foot frame, after engagement with the floor, that is to yieldably yet positively lock the foot frame in perpendicular relation to the mattress frame, before said frame touches the floor.

The means above mentioned comprises two links respectively designated 8081. The link 80 is slotted as at 82 and is connected by a pin 83 passing through the slot, to the link 76. The opposite end of this link 80 is provided (see Figure 9) with a slot 84, and the link 81 has a pin 85 extending The. link 80 is further provided with a pin 86 and a spring 87 connects the pins 8586. The link 81 is provided with a slot 88 and a pin 89 carried by link 80 passes therethrough. The slots 84:'88 and the pin connections form guides, and permit the elements to move with respect to one another lengthwise. The function of the spring 87 is to draw the parts to the position shown in Figure 9 to lengthen the linkage. It, therefore, appears that the linkage, including the elements aforesaid, is longest when in the position shown in Flgure 1, that is when the bed is in upright position. The opposite end of the l1nk 81 (see Figures 1 and 3) is pivoted as at 90 to a bracket 91 which is slotted as at 92. A pin 98 passes through the slot and adjustably' connects the bracket 91 to an extension 94: of the frame 8. By this means the bracket 91 can be adjusted to vary the lengthwise position of the linkage for purposes to be later set forth.

The operation of this linkage is as follows: First assuming the bed in the uppermost position shown in Figure 1. The pivots 4890 and 83 are so related that as the mattress frame swings downwardly the lowermost or innermost end of the slot 82 engages, by thrust motion, the pin 83 and moves the links 7 673 and therefore the head frame, to the positions shown in full lines in Figure 6; However, by the practice of this invention, although the foot frame 67 moves during the greater portion of the movement of the mattress frame downward- 1y, itsmotionis positively'interrupted be fore the foot portions of the foot frame reach the floor. tion substantially stops is indicated by dotted lines inlFigure 6, the bottomor floor engaging portion of the foot frame being indicated in that figure in dotted lines at '95 and the position of links 73 and 7 6 also being shown. The swinging motionof the elements of-the foot frame 67 is interrupted by a stop 96 formed on the transverse connecting end piece 97 of the mattress frame, the upper edge of the link 73 engaging the stop as shown in Figures 6 and 8. At the position represented by dotted lines, the linkage 8081 has not as yet been shortened, but during continued downward movement of the frame 43, the link 80 is moved length The position at which this 1110- wise against the action of the spring 87 in direction of the arrow A, see Figures 6 and 9, thereby yieldably yet forcibly holding the link 73 against the stop, so that nofurther motion of the foot frame can take place, and therefore so that all adjusting motions of said frame are stopped beforeits foo-t portions touch the floor.

I claim as my invention: I

1. A head frame having a spring, a bed frame, means pivoting said bed frame above said spring, means adapted to compress the spring when the bed frame is lowered, a lever pivoted to the bed frame adjacent the housing, means pivoting one end of the lever to the spring compressing means and means adjust-ably connecting the opposite end of the lever with the bed frame, said means including .a screw and means detachably securing its head to the bed frame, and means on the lever for clamping the screw after adjustment.

2. A head frame having a tubular housing, a compression spring in said housing, a bed spring frame and means pivoting said frame to the head frame at a point directly over the housing, a plunger in the housing adapted. to act on the spring to compress it, a lever pivoted to the bed spring frame adjacent the housing but at a point nearer the foot portion than'to the spring frame pivoting means, means pivoting one end of the lever of the plunger at a point adjacent the spring vframe pivoting means, a screw having threaded engagement with the opposite end of the lever and having a head above the lever, means rotatably but no-ntranslatbed spring frame, the lower end of the screw having a slot by which the screw can be rotated, which slot is accessible from beneath the lever.

' ably securing the head of the screw to the.

3- h ad frame having p g o ke a compresslenespmng 1n sa d socket, a, bed spring frame, means plvoting said fremete the bed frame, a plnngetedapted to co npress the spring, at lever pivoted to the bed spring frame, means pivoting one end oi the leverto the plunger, a, screw having thread- 7 ed engagement with the opposite end of the lever and means rotatably but non-translatably securing the head ofthe screw to the bed spring frame, the Opposite end of the screw having a slot by which the screw can be rotated;

In witness whereof, I have hereunto set of December, 1929.

my hand 'this 3d day LOYLE D. DOBBS. 

